CM2500 Datasheet, PDF (1/11 Pages) Champion Microelectronic Corp. – WIDE INPUT 2A STEP DOWN CONVERTER

CM2500
WIDE INPUT 2A STEP DOWN CONVERTER
GENERAL DESCRIPTION
The CM2500 is a current-mode step-down DC-DC converter
that generates up to 2A output current at 380kHz switching
frequency. The device utilizes advanced BCD process for
operation with input voltage up to 20V consuming only 20μA
in shutdown mode, the CM2500 is highly efficient with peak
efficiency at 95% when in operation.
Protection features include cycle-by-cycle current limit,
thermal shutdown, and frequency fold back at short circuit.
The CM2500 is available in SOP-8 package and requires
very few external devices for operation.
FEATURES
‹ 2A Output Current
‹ Up to 95% Efficiency
‹ 4.75V to 20V Input Range
‹ 20μA Shutdown Supply Current
‹ 380kHz Switching Frequency
‹ Adjustable Output Voltage from 1.28V to 0.85·VIN
‹ Cycle-by-Cycle Current Limit Protection
‹ Thermal Shutdown Protection
‹ Frequency Fold Back at Short Circuit
‹ Stability with Wide Range of Capacitors,
‹ SOP-8 Package
APPLICATIONS
‹ TFT LCD Monitors
‹ Portable DVDs
‹ Car-Powered or Battery-Powered Equipments
‹ Set-Top Boxes
‹ Telecom Power Supplies
‹ DSL and Cable Modems and Routers
‹ Termination Supplies
TYPICAL APPLICATIONS
2008/04/15 Rev1.0
Champion Microelectronic Corporation
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